287
FNCA52 TJSJ 240730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST THU SEP 24 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-242000-
SOUTHEAST COASTAL PLAINS-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 20
TEMP (24H TREND) 88 (-2) 74 (-2) 90
RH % (24H TREND) 59 (+2) 94 (+4) 53
WIND 20FT/EARLY(MPH) E 11 E 9 E 10
WIND 20FT/LATE(MPH) SE 11 NE 8 SE 11
MIXING HGT(FT-AGL/MSL)4410 4600
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 44100 46000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-242000-
SOUTHERN HILLS-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 20
TEMP (24H TREND) 86 (0) 71 (-3) 87
RH % (24H TREND) 65 (+1) 99 (+5) 61
WIND 20FT/EARLY(MPH) E 9 E 8 E 10
WIND 20FT/LATE(MPH) SE 10 E 8 SE 10
MIXING HGT(FT-AGL/MSL)5200 5440
TRANSPORT WND (MPH) SE 10 SE 10
VENT RATE (KT-FT) 46800 48960
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-242000-
NORTH COASTAL PLAINS-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 90 50 40
TEMP (24H TREND) 89 (-2) 74 (-2) 91
RH % (24H TREND) 63 (-2) 99 (+4) 57
WIND 20FT/EARLY(MPH) SE 10 SE 9 SE 10
WIND 20FT/LATE(MPH) E 11 SE 8 E 12
MIXING HGT(FT-AGL/MSL)4620 5370
TRANSPORT WND (MPH) E 7 E 8
VENT RATE (KT-FT) 27720 37590
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-242000-
NORTHERN HILLS-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 60 60
TEMP (24H TREND) 88 (-1) 72 (-1) 89
RH % (24H TREND) 65 (+1) 99 (+1) 60
WIND 20FT/EARLY(MPH) SE 8 SE 5 SE 8
WIND 20FT/LATE(MPH) E 6 LGT/VAR NE 10
MIXING HGT(FT-AGL/MSL)5150 5940
TRANSPORT WND (MPH) SE 7 E 6
VENT RATE (KT-FT) 30900 29700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-242000-
WEST COAST-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 40 30
TEMP (24H TREND) 90 (-1) 73 (-2) 91
RH % (24H TREND) 63 (0) 99 (+3) 59
WIND 20FT/EARLY(MPH) SE 11 E 12 SE 12
WIND 20FT/LATE(MPH) SE 13 E 9 SE 13
MIXING HGT(FT-AGL/MSL)4830 4710
TRANSPORT WND (MPH) SE 13 SE 13
VENT RATE (KT-FT) 53130 51810
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-242000-
EASTERN INTERIOR-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 88 (-1) 73 (-2) 90
RH % (24H TREND) 63 (+1) 99 (+4) 58
WIND 20FT/EARLY(MPH) SE 10 SE 9 SE 10
WIND 20FT/LATE(MPH) SE 11 SE 9 SE 11
MIXING HGT(FT-AGL/MSL)5290 6210
TRANSPORT WND (MPH) SE 10 SE 10
VENT RATE (KT-FT) 47610 55890
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-242000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 40
TEMP (24H TREND) 85 (+2) 69 (-4) 86
RH % (24H TREND) 66 (-3) 100 (+2) 62
WIND 20FT/EARLY(MPH) SE 9 SE 8 SE 9
WIND 20FT/LATE(MPH) SE 10 SE 6 SE 9
MIXING HGT(FT-AGL/MSL)4040 4580
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 40400 45800
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-242000-
CENTRAL MOUNTAIN RANGE-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 50
TEMP (24H TREND) 86 (+3) 68 (-3) 87
RH % (24H TREND) 67 (-1) 99 (+2) 62
WIND 20FT/EARLY(MPH) SE 8 SE 5 SE 9
WIND 20FT/LATE(MPH) SE 8 LGT/VAR SE 8
MIXING HGT(FT-AGL/MSL)5700 6520
TRANSPORT WND (MPH) SE 9 SE 8
VENT RATE (KT-FT) 45600 45640
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-242000-
CAYEY MOUNTAIN RANGE-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 30
TEMP (24H TREND) 84 (0) 70 (-3) 86
RH % (24H TREND) 68 (0) 100 (+2) 63
WIND 20FT/EARLY(MPH) SE 8 SE 6 SE 8
WIND 20FT/LATE(MPH) SE 9 E 5 SE 8
MIXING HGT(FT-AGL/MSL)4750 5050
TRANSPORT WND (MPH) SE 10 SE 12
VENT RATE (KT-FT) 42750 50500
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-242000-
VIEQUES-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 30 40
TEMP (24H TREND) 88 (-1) 75 (-4) 89
RH % (24H TREND) 61 (-1) 94 (+7) 58
WIND 20FT/EARLY(MPH) SE 11 SE 11 SE 11
WIND 20FT/LATE(MPH) SE 11 E 10 SE 11
MIXING HGT(FT-AGL/MSL)3250 3300
TRANSPORT WND (MPH) SE 13 E 10
VENT RATE (KT-FT) 35750 29700
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-242000-
CULEBRA-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 30 40
TEMP (24H TREND) 89 (0) 78 (-3) 90
RH % (24H TREND) 61 (-6) 93 (+7) 58
WIND 20FT/EARLY(MPH) SE 11 SE 11 SE 11
WIND 20FT/LATE(MPH) SE 12 E 10 SE 11
MIXING HGT(FT-AGL/MSL)3280 3470
TRANSPORT WND (MPH) SE 14 E 12
VENT RATE (KT-FT) 39360 34700
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-242000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 10
TEMP (24H TREND) 90 (-1) 75 (-2) 92
RH % (24H TREND) 56 (-1) 96 (+5) 50
WIND 20FT/EARLY(MPH) E 13 E 16 E 16
WIND 20FT/LATE(MPH) SE 16 E 11 SE 16
MIXING HGT(FT-AGL/MSL)4930 4620
TRANSPORT WND (MPH) SE 14 SE 15
VENT RATE (KT-FT) 59160 60060
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-242000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 30
TEMP (24H TREND) 87 (0) 77 (-3) 88
RH % (24H TREND) 64 (-5) 91 (+5) 61
WIND 20FT/EARLY(MPH) SE 12 SE 12 SE 12
WIND 20FT/LATE(MPH) SE 12 E 11 SE 12
MIXING HGT(FT-AGL/MSL)3320 3310
TRANSPORT WND (MPH) SE 15 E 12
VENT RATE (KT-FT) 43160 33100
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-242000-
ST CROIX-
330 AM AST THU SEP 24 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 50
TEMP (24H TREND) 87 (-1) 77 (-3) 89
RH % (24H TREND) 66 (-2) 95 (+5) 62
WIND 20FT/EARLY(MPH) SE 12 E 10 E 13
WIND 20FT/LATE(MPH) SE 12 E 10 SE 13
MIXING HGT(FT-AGL/MSL)4280 4640
TRANSPORT WND (MPH) SE 15 SE 17
VENT RATE (KT-FT) 55640 69600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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